Maximum Power Tracking Solar Controller Model MPPT 20

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Shanghai
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TT OR LC
Min Order Qty:
5 unit
Supply Capability:
150 unit/month

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Product Description:

 

1. Structure of MPPT Maximum Power Tracking Solar Controller Model MPPT 15/ MPPT 30

       The controller is an indispensable part of solar system, this MPPT Maximum power tracking solar controller is remarkable, because it can adjust with intelligence the working voltage of solar panels, so that the solar panels can reach the maximum power spot of the V-A characteristics curve during the work. Compared with the common solar controller, this MPPt Maximum power tracking solar controller can increase the use ratio of the solar panels power by 10-30%.

 

 

2. Main Features of MPPT Maximum Power Tracking Solar Controller Model MPPT 20

       ·   Protection against overcharging of the accumulator

·   Protection against over discharging of the accumulator

·   Protection against reverse discharging of the accumulator to solar panels

·   Overload protection and short circuit protection

 

3. MPPT Maximum Power Tracking Solar Controller Model MPPT 20 Images

Maximum Power Tracking Solar Controller Model MPPT 20

 

4. MPPT Maximum Power Tracking Solar Controller Model MPPT 20 Specification

 

Type

 MPPT20-12/25

MPPT20-24/50

Nominal Voltage

 DC12V

DC24V

Voltage scope available for Max. solar power tracking

 12-25V

24-50V

Max. open circuit voltage for solar energy

 25V

50V

Max. charging current

 20Areferring charging current from accumulator

Max. discharging current

 20A

20A

No load losses

 ≤8mA

≤40mA

Off voltage after full charging

 14V

28V

Off voltage when undervoltage

 10.5V

21V

Starting recovery voltage

 12.6V

25.2V

Efficiency

 95%97%

 

5. FAQ

We have organized several common questions for our clients, which may help you sincerely:

a)     How about your capacity?

 We can produce 300,000 set inverter per year currently, 60,000 set solar energy charge controllers. And the product is sold towards domestic and Europe, Australia and Africa etc.

 

b)     How to guarantee the quality of the products?

The company presses the ISO9000 quality management system control product quantity strictly, the export production all passes the relevant national company check (CE, ROHS), and get high evaluation of the customer.

 

c)     How long can we receive the product after signing Sales Confirmation?

Generally speaking, if there is enough quantity of finished products which can meet the clients’ requirement, we can manage the delivery within three to five working days according to the instruction of the payment terms in the Sales Confirmation; if the products need some time to get ready, we will arrange the delivery as soon as possible after the manufacture.

 

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Q:Solar water heater controller power screen is not displayed
Probably the relay is burned out
Q:Solar panels for solar panels
Solar controller is composed of dedicated processor CPU, electronic components, monitors, switching power tubes and other components.
Q:Solar controller can not charge what is the reason
Float control point voltage: the general charge is completed, the battery is also standing for some time, so that the end voltage naturally fall, when the drop to the "maintenance voltage" point, it entered the float state, are currently using PWM (both Pulse width modulation), similar to the "trickle charge" (that is, a small current charge), a low battery voltage to charge a little, a low charge on the point, an share of a place to avoid the battery temperature continues to rise, This is very good for the battery, because the internal temperature of the battery charge and discharge a great impact. In fact, the PWM method is mainly designed to stabilize the battery terminal voltage, by adjusting the pulse width to reduce the battery charge current. This is a very scientific charge management system. Specifically, at the end of the charge, when the remaining capacity of the battery (SOC)> 80%, it is necessary to reduce the charging current to prevent excessive release (oxygen, hydrogen and acid gas) due to overcharging.
Q:How the inverter is connected to the solar controller
The controller combines the logic controller and the microprogram controller, both of which have strengths and weaknesses. The combination of logic controller design trouble, complex structure, once the design is completed, can not be modified or expanded, but it is fast. Microprogram controller is easy to design, simple structure, modify or expand are convenient, modify the function of a machine instruction, just repeat the corresponding micro-program; to add a machine instruction, just add a micro-program in the control memory, However, it is done by performing a short process. The specific comparison is as follows: Combination logic controller, also known as hard-wired controller, composed of logic circuit, completely by hardware to achieve the function of the instruction.
Q:How to adjust the solar controller
The controller through the computer chip on the battery terminal voltage, discharge current, ambient temperature and other parameters related to the battery capacity of the sample, through the special control model calculation, to achieve the characteristics of the battery discharge rate, temperature compensation correction of high efficiency, high accuracy rate control , And adopted a high efficiency PWM battery charging mode, to ensure that the battery work in the best condition, greatly extending the battery life. With a variety of work patterns, output mode selection, to meet the various needs of users.
Q:What is the use of solar controller
Communication function. ① simple instructions function; ② protocol communication functions, such as RS485 Ethernet, wireless and other forms of background management;
Q:What is the meaning of the 30A solar controller?
The maximum current is 30A
Q:Solar controller does not heat how to heat
Solar controller with live heating, with no electric heating, and now your controller without electric heating, can only replace a charged heating. "Solar public welfare network" free consultation
Q:Solar controller red light flashing
Installation of the controller should pay attention to: 1, waterproof; some of the controller on the market is not easy to produce waterproof, easy to penetrate the water vapor in the poles, resulting in short circuit and other issues; 2, pay attention to the controller and system rationality, 3, the main function of the controller is to protect the battery, must pay attention to.
Q:A solar controller 12v20A battery 12v 20A Will the need for a few watts of solar panels can be normal charge
Solar controller is called solar charge and discharge controller, is used in solar power system, the control of multi-channel solar cell battery charging and battery to the solar inverter load power supply automatic control equipment.

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